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Late aneurysm rupture after endovascular abdominal aneurysm repair

^a Department of General, Vascular and Transplant Surgery, Medical University of Warsaw, Banacha 1a, 02-097 Warsaw, Poland
^b Department of Radiology, Medical University of Warsaw, Poland

*Corresponding author. Tel.: +48 22 599 24 67; fax: +48 22 599 14 68.

E-mail address: tomj{at}amwaw.edu.pl (T. Jakimowicz).

Objectives: The goal of endovascular repair is to protect the patient from aneurysm rupture. Careful surveillance should be performed postoperatively in order to select patients with aneurysm growth and, therefore, the highest rupture risk. The aim of the study was to present our experience with aneurysm rupture in long-term follow-up after endovascular abdominal aneurysm repair. Methods: Between 1998 and 2006, 445 patients with abdominal aortic aneurysms were treated endovasculary in our Department. All patients were followed-up postoperatively according to the EUROSTAR protocol, with a CT scan performed postoperatively in the 3rd, 6th and 12th month and annually thereafter with good compliance. Because of this we had the opportunity for early treatment of complications, especially endoleaks which may cause aneurysm growth and subsequent rupture. Results: In three presented patients aneurysm rupture occurred in the late follow-up period after endovascular treatment. In all cases open aneurysmectomy was performed without any major complications. We also analyzed the reason for the rupture: in all cases it was due to endoleak type I, that was not present during postoperative CT-scans. The mechanism of its recurrence was proximal cuff migration 29 months after endovascular aneurysm treatment in the first patient. In the second case endoleak type I appeared 32 months postoperatively due to aneurysm lengthening, what could have been the consequence of persistent, small endoleak type II. In the third case the reason of aneurysm rupture was late endoleak type I due to migration of proximal seal of the stentgraft. Conclusions: Although the risk of aneurysm rupture after EVAR is low, all patients treated endovascularly should be routinely monitored, in order to select cases with potential endoleaks or stentgraft migration which may lead to fatal complications. When rupture occurs open aneurysmectomy is feasible, although it requires careful management in these high-risk patients.

Key Words: Endovascular aneurysm repair; Aneurysm rupture; Stentgraft; Complications

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				M. Marzban ICVTS on-line discussion A Restenting for ruptured aneurysm after EVAR Interactive CardioVascular and Thoracic Surgery, August 1, 2007; 6(4): 494 - 494. [Full Text] [PDF]